Three stages of water microdroplet evaporation on hydrophobized surface: Comparison between steady-state theory and experiment

Three consecutive stages of evaporation of a sessile water microdroplet are studied both theoretically and experimentally under the conditions of contact angle hysteresis. The influence of thermal effects on the dynamics of droplet evaporation is quantitatively investigated on the basis of the obtai...

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Bibliographic Details
Published in:Colloid journal of the Russian Academy of Sciences 2017-05, Vol.79 (3), p.353-359
Main Authors: Kuchma, A. E., Shchekin, A. K., Esipova, N. E., Tatyanenko, D. V., Itskov, S. V., Savin, A. V.
Format: Article
Language:English
Subjects:
Ambient temperature
Chemistry
Chemistry and Materials Science
Contact angle
Dynamics
Evaporation
Hysteresis
Polymer Sciences
Surfaces and Interfaces
Temperature effects
Thin Films
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Summary:Three consecutive stages of evaporation of a sessile water microdroplet are studied both theoretically and experimentally under the conditions of contact angle hysteresis. The influence of thermal effects on the dynamics of droplet evaporation is quantitatively investigated on the basis of the obtained experimental results. The features of droplet evolution are analyzed at the final stage, when both the contact angle and the radius of the droplet base decrease with time. It is shown that evaporation at this stage also occurs in a steady-state regime, but the average droplet temperature approaches the ambient temperature.
ISSN:1061-933X
1608-3067
DOI:10.1134/S1061933X17030085